VirtualBox hangs when copying a large directory in debian testing when 3.0.0-1 kernel

Regression from linux-image-2.6.32-5-686. I wanted to copy a directory (the wine git repository). Doing this with the 3.0.0-1 kernel then causes VirtualBox to shutdown the virtual machine. If I do this with 2.6.32-5, the directory copies without problems. Command used was:
$ cp -r wine-git wine-clang

Hmm, your host kernel is obviously PAE-enabled and your guest has 2GB RAM. I assume your guest kernel is also PAE-enabled, is that right? Any difference if you disable PAE for that guest? Any difference if you disable nested paging for that guest?